/*
 * Copyright 2006 George Georgovassilis <g.georgovassilis[at]gmail.com>
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *    http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.gwtwidgets.server.spring.enhancer;

import org.gwtwidgets.server.spring.GWTSpringController;
import org.gwtwidgets.server.spring.ReflectionUtils;
import net.sf.cglib.proxy.Callback;
import net.sf.cglib.proxy.Enhancer;
import com.google.gwt.user.client.rpc.RemoteService;

/**
 * Class enhancer implementation based on CGLIB dynamic proxying. Extends the
 * {@link GWTSpringController} and delegates invocations to the delegate service
 * via reflection.
 * 
 * @author g.georgovassilis[at]gmail.com
 * 
 */
public class CGLIBEnhancer implements ClassEnhancer {
	public GWTSpringController createController(RemoteService delegate,
			boolean unwrapExceptions) {
		Class[] interfaces = ReflectionUtils.getImplementedInterfaces(delegate
				.getClass());
		Callback callback = new DelegatingCallback(delegate, unwrapExceptions);
		GWTSpringController controller = (GWTSpringController) Enhancer.create(
				GWTSpringController.class, interfaces, callback);
		return controller;
	}
}
